1. Check the tightness and wear of the V-belt (or flat belt). If it is too tight or too worn, adjust the belt or adjust it in time. 2. Check the wear of the guard plates on both sides. If the wear is serious, it should be replaced. 3. Adjust the opening size of the raft according to the block size required by the process. 4. If there is no protective cover or the protective cover is not perfect, you must not drive to avoid personal accidents. 5. Move the flywheel or pull the belt with your hand to confirm that the equipment is flexible and can be tested without load. 6. After the jaw crusher equipment is running normally, the feed is allowed to be broken. The addition should be uniform and no other blocks should be allowed. 7. Always pay attention to the discharge situation of the jaw crusher. If there is any blockage, it should be cleared in time. 8. Before parking, all the blocks between the jaws of the jaw crusher must be broken before parking. 2Pc Ball Valves, 2Pc Ball Valve ,2Pc Body Ball Valve,Stainless Steel 2Pc Ball Valves WENZHOU DIYE VALVE&FITTINGS CO.,LTD , https://www.diye-valve.com